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Old 03-28-2007
onebluemcm's Avatar
I am: Kevin W
Join Date: Feb 2007
Location: Chesterfield, VA
Vehicle: 2007 Ford Ranger FX4 leve
Posts: 71
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Just a thought - if you spin the alt faster, it will make more current - correct? it is an induction device after all. So, would it be possible to put a smaller pulley on a stock one so that it would spin faster?

I guess even if this is possible, I still wonder how much more current you would get from such a modification. And I don't have a clue if it's safe to do or not.
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Old 03-28-2007
pushdeck's Avatar
Thread Starter

I am: Nikolas Thomson
Join Date: Oct 2005
Location: Melbourne, FL
Vehicle: 1999 Mazda B-3000
Posts: 217
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I believe the pulley set I put on was a smaller alt pulley than before, but still not enough power, especially not when I want to run 4-8 100w lights.... plus my system, plus my efan, then I still need sufficient power to the rest of my truck to run right.........

From what I have seen 200amp is the largest you can run to be safe with stock wiring, even seen that the power wire to alt needs to be upgraded though with the new alternator.........

Anyone know if that alternator will fit? or if the 4.0 and 3.0 alternators are the same stock which would mean it would work?

NEW TRUCK>>> 1990 Ford Ranger Ex Cab, RED, 2.9L 2WD, Manual, 3" Body, 2" coils and blocks, 31" BFG AT's.....

OLD GIRL BEFORE BENT FRAME AND METAL COMPACTOR...... :( Mazda B3000, 99', Flowmaster side exit (passenger,dual tip), MAC intake, Pulleys, Efan, 3" spindle, 2.5" coils and UCA, & 3" bocks, AAL, BL, 15X10 Eagle 057 Alloys, 32X15X11.5 Bridgestone Dueler M/T, 8.8 with 4.10's, Low Profile Diamond Cut toolbox, Sound System, more, more, more here.........***MyDomain*** <------- More Truck info and pics....
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